You are not a failure (well probably not, I don't know you) but a lot of people feel this way once in a while. A lot of the time, I feel like I screw everything up and for a lot of people it's just bad luck. If you feel like this a lot that it is possible you are depressed. Just know that a lot of people feel like this, you are not the only one.
maybe you're clumsy like me. and most of my friends. and most of everyone else in the world! don't worry about your fails, focus on the good things in life. nobody is a failure...everyone is good at something, besides messing things up.
I know the feeling! No matter how hard you try you always seem to mess something up!!!! And when you try to fix everything it never works out right!!! Just remember that you are the best "you" that thee is!! So you are not a failure because you are perfect at being you!!